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GB/T 34273-2021: Standard test method for calculated cetane index of coal liquefaction diesel - Four variable equation
Status: Valid GB/T 34273: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 34273-2021 | English | 119 |
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Standard test method for calculated cetane index of coal liquefaction diesel - Four variable equation
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GB/T 34273-2021
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| GB/T 34273-2017 | English | 199 |
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Coal based Fisher-Tropsch synthesis -- Standard test method for calculated cetane index of distillate fuels -- Four variable equation
| Obsolete |
GB/T 34273-2017
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PDF similar to GB/T 34273-2021
Standard similar to GB/T 34273-2021 GB/T 26127 GB/T 35064 GB 34170 GB/T 43761 Basic data | Standard ID | GB/T 34273-2021 (GB/T34273-2021) | | Description (Translated English) | Standard test method for calculated cetane index of coal liquefaction diesel - Four variable equation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D20 | | Word Count Estimation | 5,522 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 34273-2021: Standard test method for calculated cetane index of coal liquefaction diesel - Four variable equation
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Standard test method for calculated cetane index of coal liquefaction diesel -- Four variable equetion
ICS 73:040
CCSD20
National Standards of People's Republic of China
Replaces GB/T 34273-2017
Coal liquefied diesel cetane index calculation method
four-variable formula
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document replaces GB/T 34273-2017 "Four-variable formula method for calculation of cetane index for coal-based Fischer-Tropsch synthetic distillate fuel", and
Compared with GB/T 34273-2017, in addition to structural adjustment and editorial changes, the main technical content changes are as follows:
a) changed the scope of the document (see Chapter 1, Chapter 1 of the:2017 edition);
b) Added the calculation of the cetane index of coal direct liquefaction diesel (see 6:1:1);
c) Added the calculation of cetane index for coal liquefaction blended diesel (see 6:1:3):
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Coal Industry Association:
This document is under the jurisdiction of the National Standardization Technical Committee of Coal Chemical Industry (SAC/TC469):
This document is drafted by: Zhongke Synthetic Oil Technology Co:, Ltd:, Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences, Coal Science and Technology Research
Institute Co:, Ltd:, China Shenhua Coal-to-Liquid Chemical Co:, Ltd:, Inner Mongolia Yitai Group Co:, Ltd:, and Lu'an Chemical Group Co:, Ltd:
The main drafters of this document: Li Ying, Yang Yong, Ding Hua, Feng Yuyan, Zhao Yanli, Wen Xiaodong, Geng Chunyu, Li Haijun, Shi Yongsheng, Bai Xuemei,
Dai Xiuchuan, Zhang Chunfeng, Zhang Min, Zhang Xiaojun:
This document was first published in:2017 and this is the first revision:
Coal liquefied diesel cetane index calculation method
four-variable formula
1 Scope
This document specifies the cetane index of coal direct liquefied diesel, coal indirect liquefied diesel and coal liquefied blended diesel blended by the two:
calculation method:
This document is applicable to direct coal liquefied diesel, coal indirect liquefied diesel and coal liquefied blended diesel cetane index:
calculate:
Note: This document uses the term "hexadecane index" to mean "four-variable formula method cetane index":
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 1884 Laboratory Determination of Density of Crude Oil and Liquid Petroleum Products (Densitometer Method)
GB/T 6536 Determination of Atmospheric Distillation Characteristics of Petroleum Products
SH/T 0604 Determination of Density of Crude Oil and Petroleum Products (U-Shaped Vibrating Tube Method)
3 Terms and Definitions
There are no terms and definitions that need to be defined in this document:
4 Principles of the method
The density of the samples at 15°C and the 10%, 50% and 90% recovery temperatures were determined according to standard test methods: Use the measured number of trials
According to the given formula, calculate the cetane index of the sample:
5 Test steps
5:1 According to the operation steps of GB/T 1884 (or SH/T 0604), measure the density of the sample at 15℃, accurate to 0:0005g/cm3:
5:2 According to the operation steps of GB/T 6536, measure the 10%, 50% and 90% recovery temperature of the sample under standard atmospheric pressure, and the accuracy is
to 1°C:
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